curl -i -X GET \
  'https://api.portal.io/public/proposals/123/changeorders' \
  -H 'Accept: application/json' \
  -H 'X-MSS-API-APPID: YOUR_APP_ID' \
  -H 'X-MSS-API-USERKEY: YOUR_USER_KEY' \
  -H 'X-MSS-CUSTOM-DATE: Mon, 06 Apr 2026 00:22:19 GMT' \
  -H 'X-MSS-SIGNATURE: BASE64_SIGNATURE'

import requests
from portal_auth import sign_request  # See authentication guide

url = "https://api.portal.io/public/proposals/123/changeorders"
timestamp = "Mon, 06 Apr 2026 00:22:19 GMT"
signature = sign_request("GET", url, "", timestamp, "YOUR_USER_KEY", "YOUR_SECRET_KEY")

response = requests.get(url, headers={
    "Accept": "application/json",
    "X-MSS-API-APPID": "YOUR_APP_ID",
    "X-MSS-API-USERKEY": "YOUR_USER_KEY",
    "X-MSS-CUSTOM-DATE": timestamp,
    "X-MSS-SIGNATURE": signature
})
print(response.json())

const { signRequest } = require('./portalAuth'); // See authentication guide

const url = "https://api.portal.io/public/proposals/123/changeorders";
const timestamp = new Date().toUTCString();
const signature = signRequest("GET", url, "", timestamp, "YOUR_USER_KEY", "YOUR_SECRET_KEY");

const response = await fetch(url, {
    headers: {
        "Accept": "application/json",
        "X-MSS-API-APPID": "YOUR_APP_ID",
        "X-MSS-API-USERKEY": "YOUR_USER_KEY",
        "X-MSS-CUSTOM-DATE": timestamp,
        "X-MSS-SIGNATURE": signature
    }
});
const data = await response.json();
console.log(data);

[
  {
    "id": 42,
    "number": 1,
    "name": "Change Order 1",
    "status": "Draft",
    "total": {
      "changeOrderTotal": 1250.00,
      "currency": {
        "code": "USD",
        "symbol": "$"
      }
    },
    "customer": {
      "id": 101,
      "partyType": "Person",
      "contactType": "Client",
      "firstName": "Jane",
      "lastName": "Smith",
      "companyName": null,
      "contactEmail": "jane@example.com",
      "contactPhone": "555-867-5309"
    },
    "createdDate": "2026-04-01T10:00:00Z",
    "lastModifiedDate": "2026-04-05T14:30:00Z",
    "lastModifiedByUserDate": "2026-04-05T14:30:00Z"
  }
]